Recently Updated Extensions

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Header Tools Improved

Allows to modify headers and source of messages

Rated 5 out of 5 stars (36)
2,379 users
Updated March 18, 2024

Toggle Inline

Adds a Toggle Inline button

Rated 5 out of 5 stars (1)
93 users
Updated March 18, 2024

Compact Headers

Limits displayed headers to 1 or 2 lines.

Rated 4 out of 5 stars (67)
11,105 users
Updated March 18, 2024

Dysclusif

Simplifier la lecture de mails en supprimant l'écriture inclusive

Rated 5 out of 5 stars (1)
8 users
Updated March 18, 2024

regimail

AddOn for sending regimail with Thunderbird on Windows, MacOS and Linux.

*IMPORTANT:*
In order to use this AddOn, you need to install the regify client on your system and configure it with a valid regify account.

Not yet rated
13 users
Updated March 18, 2024

CardBook Featured

A new Thunderbird address book based on the CardDAV and vCard standards.

Twitter: @CardBookAddon

Rated 4 out of 5 stars (439)
77,223 users
Updated March 18, 2024

Extract 'Em! Featured

Extracts attachments from messages within an account or folder, with the option to select specific attachments. Extracted attachments are saved to a .zip file.

Rated 5 out of 5 stars (1)
92 users
Updated March 18, 2024

SmartProxy

SmartProxy is a smart automatic proxy switcher that will automatically enable/disable proxy for the sites you visit, based on customizable rules.

Rated 5 out of 5 stars (1)
197 users
Updated March 16, 2024

10ten Japanese Reader (Rikaichamp)

Look up Japanese words with the hover of a mouse.

After enabling the add-on from the toolbar (or press Alt+R) simply hover over Japanese text and a popup displays corresponding dictionary definitions.

Rated 5 out of 5 stars (4)
176 users
Updated March 12, 2024

ObsidianClipper

ObsidianClipper is a Thunderbird extension to clip emails to the Obsidian notetaking application. Save an email to Obsidian seamlessly with one click. Customize the format of new note titles and note layout.

Rated 5 out of 5 stars (2)
125 users
Updated March 12, 2024

Owl for Exchange

Allows you to use your Exchange and Office365 email account with Thunderbird using Outlook Web Access (OWA).

Rated 5 out of 5 stars (187)
49,321 users
Updated March 7, 2024

Multimonth view

Multimonth View allows users to display multiple months in a single calendar view,

Rated 1 out of 5 stars (2)
10 users
Updated March 5, 2024

Start with Inbox

Selects the latest message in the Inbox after start of Thunderbird.

Rated 4 out of 5 stars (18)
1,109 users
Updated March 5, 2024

Birthday Calendar

Adds calendars containing the birthdays from your address books.

Rated 4 out of 5 stars (21)
7,582 users
Updated March 5, 2024

Auto Avatars

Add-on for Thunderbird that automatically populates contact photos with their Libravatar or Gravatar photo. Includes support for custom instances and federation!

Not yet rated
36 users
Updated March 5, 2024

Send Later Button

The Send Later Button extension enhances Thunderbird by enabling 'Send Later' even in online mode. It supports many Languages, ensuring a seamless user experience.

See: https://github.com/That-Developer-Guy/Send-Later-Button-Thunderbird/

Not yet rated
773 users
Updated March 4, 2024

Open Google Messages

Adds an icon on the spaces toolbar to quickly open Google Messages

Rated 5 out of 5 stars (1)
73 users
Updated March 2, 2024

StandardTexter

With the help of this Add-on, up to 99 pre-made texts (standard texts, text modules or even signatures) can be stored, which can then be retrieved and inserted when writing an e-mail.
The texts can be preformatted with HTML.

Rated 5 out of 5 stars (9)
1,810 users
Updated Feb. 29, 2024

Tag Sync for TB

Syncronise/transfer tags, to other TB installations.

POP and some IMAP servers don't store tags (keywords).
This addon helps to have the same emails tagged on all TB installations.
Uses a central database, can be installed on your PC or server.

Not yet rated
7 users
Updated Feb. 28, 2024

Just Report It

Just Report It (https://justreport.it) is an email plugin which tackles spam the right way. Report emails straight to SpamCop, the Registrar, a custom email address or any combination in between!

Rated 5 out of 5 stars (12)
804 users
Updated Feb. 28, 2024